ประสิทธิภาพของธูปฤาษีและกกกลมในการบำบัดน้ำเสียชุมชนโดยพื้นที่ชุ่มน้ำประดิษฐ์ แบบไหลผ่านลำต้น (Efficiency of Thypha angustifolia Linn. and Cyperus colymbosus Rotth. for Domestic Wastewater Treatment by Free Water Surface Constructed Wetland)

Abstract

The experimental research was conducted to investigate the efficiency of Typha angustifolia Linn. and Cyperus corymbosus Rotth. for domestic wastewater treatment by free water surface constructed wetland.The natural influent was drived from Ban Wae community which was flowing to the Banna’s canal was used for the treatment. The efficiency of wastewater treatment with Typha angustifolia Linn. and Cyperus corymbosus Rotth.at different hydraulic retention time (HRT). The studied paramiters were BOD, SS,TKN and TP including the changes of DO and pH at 3, 6 and 9 days with difference HRTs. The analysis of variance was used for testing the data at significant level of 0.05. The result showed that the efficiency of wastewater treatment by Typha angustifolia Linn. and Cyperus corymbosus Rotth. was higher than control (without plants). The HRT had significantly effect on treatment of BOD, SS,TKN and TP including DO. At HRT of 9th day, the highest efficient treatment of 84.88 % BOD, 91.24 % SS, 67.88 % TKN, 68.86 % TP and 27.12 % DO was observed. However, there was no different in pH among the experimental unit.